/*
 * Created on 14-Jul-2004
 * Created by Paul Gardner
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

package com.aelitis.azureus.core;

/**
 * @author parg
 * 
 */

public interface AzureusCoreLifecycleListener {
    public void componentCreated(AzureusCore core, AzureusCoreComponent component);

    public void started(AzureusCore core);

    public void stopping(AzureusCore core);

    public void stopped(AzureusCore core);

    /**
     * return true if the request has been accepted (and hence the listener will arrange for a stop to occur
     * 
     * @param core
     * @return
     */

    public boolean stopRequested(AzureusCore core)

    throws AzureusCoreException;

    public boolean restartRequested(AzureusCore core)

    throws AzureusCoreException;

    /**
     * Some listeners must be invoked on the same thread that initiates a core closedown. In particular the show-alerts-raised-during-closedown logic
     * requires that it is invoked on the swt thread that initiated the closedown.
     * 
     * @return
     */

    public boolean syncInvokeRequired();

    /**
     * hack - original semantics of the "started" event was that all plugins init complete However, some can take a long time (and even block if
     * attempting to acquire, say, public IP address and version server is down...) so added this flag to allow listeners to indicate that they're
     * happy to be "started" before plugin init complete
     * 
     * @return
     */

    public boolean requiresPluginInitCompleteBeforeStartedEvent();
}
